package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;


@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;



    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        /**
         * ①. 将页面提交的密码password进行md5加密处理, 得到加密后的字符串
         * ②. 根据页面提交的用户名username查询数据库中员工数据信息
         * ③. 如果没有查询到, 则返回登录失败结果
         * ④. 密码比对，如果不一致, 则返回登录失败结果
         * ⑤. 查看员工状态，如果为已禁用状态，则返回员工已禁用结果
         * ⑥. 登录成功，将员工id存入Session, 并返回登录成功结果
         */

          String password=employee.getPassword();
          password =DigestUtils.md5DigestAsHex(password.getBytes());

        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);
        if (emp==null ){
            return R.error("登陆失败");
        }
        if (!emp.getPassword().equals(password)){
            return R.error("登录失败");

        }

        if (emp.getStatus()==0){
            return R.error("你已经被封号");

        }

        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);



    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");


        return R.success("退出成功");
    }

    /**
     * 新增员工
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工信息：{}",employee.toString());
        //给与初始密码,mod5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
      /*  employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());*/
        //获得创建人id
       /* Long empId = (Long) request.getSession().getAttribute("employee");
        employee.setCreateUser(empId);
        employee.setUpdateUser(empId);*/

        employeeService.save(employee);
        return R.success("新增成功");
    }

    /**
     * 分页查询 （使用MP分页插件）
     */
    @GetMapping("/page")
    public  R<Page> page(int page,int pageSize,String name){

        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);

        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行分页查询
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }

    /**
     * 根据id修改员工信息（包括修改员工账号状态）
     * 前端对Long数据精度缺失，转为String
     */
    @PutMapping
    public  R<String> update(HttpServletRequest request, @RequestBody Employee employee){
       /* long id = Thread.currentThread().getId();
        log.info("线程id为：{}",id);*/
       /* employee.setUpdateUser((Long)request.getSession().getAttribute("employee"));
        employee.setUpdateTime(LocalDateTime.now());*/
        employeeService.updateById(employee);
        return R.success("员工信息修改成功");
    }

    /**
     * 修改员工的界面信息回显
     */
    @GetMapping("/{id}")
    public R<Employee> getId(@PathVariable Long id){
        Employee employee = employeeService.getById(id);
        if(employee!=null) {
            return R.success(employee);
        }
        return R.error("没有对应员工的信息");
    }


}
